Translation and Meaning of: 一層 - issou

If you have already studied Japanese, you have probably come across the word 一層 (いっそう), which carries an intensifying meaning: "much more," "even more," or "increasingly." But do you know where it comes from, how its kanji relates to the concept, or how the Japanese use it in their daily lives? In this article, we will explore the etymology, practical use, and even tips for memorizing this very useful expression. Here at Suki Nihongo, you will also find examples of ready-made sentences to include in your Anki and boost your studies with spaced repetition.

Etymology and Origin of 一層

The word 一層 is composed of two kanji: 一 (いち), which means "one," and 層 (そう), which can be translated as "layer" or "level." Together, they convey the idea of "one more layer," something that goes beyond what already exists. This construction perfectly reflects the sense of intensification that the word carries. It's no wonder that it often appears in contexts where something becomes even more evident, such as in "一層頑張ります" (I will strive even harder).

Curiously, the kanji 層 also appears in words like 階層 (かいそう), which means "hierarchy" or "social layer." This connection reinforces the notion of addition or overlapping, as if each use of 一層 stacks a new layer of meaning on top of the action or quality described. Imagine a tower of layers: every time you say いっそう, you are adding another block on top.

Lies in Japanese Everyday Life

In Japan, 一層 is one of those words that appears in both informal conversations and formal speeches. It is especially common in situations where someone wants to express an increase in effort or dedication. For example, a student might say "試験が近いので、一層勉強します" (Since the exam is approaching, I will study even more). Did you notice how the word adds extra weight to the sentence?

Another interesting use is in advertisements or public campaigns, where 一層 is used to emphasize commitments. I have seen signs in train stations saying "安全対策を一層強化します" (We will further strengthen safety measures). This type of construction conveys a sense of continuous progress, almost as if the company is saying: "We won't stop here."

Tips for Memorizing and Curiosities

A funny way to remember the meaning of 一層 is to think of the kanji 層 as a layered cake. Each time you add "one layer" (一層), the cake gets bigger and more delicious — just like the intensity of the action described. If you are a cooking fan, this association can stick in your mind like honey!

A quick Google search shows that many people confuse 一層 with 一番 (いちばん), which means "the most" or "number one." Although both start with 一, their uses are quite different. While 一番 establishes comparisons (一番好き = "the one I like the most"), 一層 intensifies something that already exists. How about practicing this difference by creating two sentences with each?

Vocabulary

Expand your vocabulary with related words:

Synonyms and similar words

• 一段階 (ichidankai) - Level or phase; A stage in a process.
• 一段落 (ichidanraku) - A pause or conclusion; a paragraph.
• 一段階分 (ichidankaibun) - An amount corresponding to a phase.
• 一段 (ichidan) - A section or level; it can be used in different contexts.
• 一層分 (issou-bun) - A layer or level corresponding to a section.
• 一層 (issou) - A layer or level.
• 一層階 (issou-kai) - Level of a layer; it can refer to layers in a construction.
• 一層分け (issou-wake) - Layering.
• 一層面 (issou-men) - A face or surface of a layer.
• 一層級 (issou-kyuu) - Layer level; degree of layers.
• 一層目 (issou-me) - First layer or level.
• 一層分ける (issou-wakeru) - Layering.
• 一層上がる (issou-agaru) - Raise a level or layer.
• 一層下がる (issou-sagaru) - Descend one level or layer.
• 一層差し上げる (issou-sashiageru) - Give a level or layer up; offer.
• 一層差し引く (issou-sashihiku) - Subtract a level or layer.
• 一層差し戻す (issou-sashimodosu) - Return a level or layer.
• 一層差し止める (issou-sashitomeru) - Prevent a level or layer.
• 一層差し掛かる (issou-sashikakaru) - To be about to reach a level or layer.
• 一層差し込む (issou-sashikomu) - Insert into a level or layer.
• 一層差し返す (issou-sashikaesu) - Return a received level or layer.
• 一層差し出す (issou-sashidasu) - Present a level or layer.
• 一層差し引き (issou-sashihiki) - Discount a level or layer.
• 一層差し上げ (issou-sashiage) - Give or offer a level or layer.

一層

Romaji: issou
Kana: いっそう
Type: noun
L: jlpt-n3

Translation / Meaning: a lot more; further; more and more

Meaning in English: much more;still more;all the more

Definition: (1) Paint a thin layer on the surface of something you currently own. The first thing to apply when painting two or more layers of material. "Paint the wall"

Example Sentences - (一層) issou

See below some example sentences:

一層高くなりたいです。

Issou takaku naritai desu

I want to be a higher level.

I want to be even higher.

• 一層 - "ichi sou" means "one floor" or "one level."
• 高く - "takaku" means "tall"
• なりたい - "naritai" means "to want to become"
• です - "desu" is a final particle that indicates formality and politeness.